【摘要】 文章就顺序喷射CNG/汽油两用汽车选取了怠速、匀速、加速、减速典型工况点,对燃用天然气和汽油时进行了尾气排放测试。实验结果表明,现有设备技术下的试验车辆的HC在各个工况中的排放均大幅下降,CO除加速工况也有一定程度的下降,NOx除减速工况外的上升则是因为燃用天然气时原车点火提前角的再提前所导致的燃烧温度的上升和高温燃烧时间的延长。更多还原

【Abstract】 Article on the sequential spray-type CNG/gas-oil dual-fuel vehicle selects idling, constant, accelerated, decelerated speed typical operating point, and tests the exhaust emission when use of natural gas and gasoline for fuel. Experimental results show that under the existing equipment, technology, test vehicles in various operating conditions the HC emission are significantly decreased; CO emission besides accelerated conditions also have a certain decreased; NOx emission in addition to decelerated conditions rise is due to the rise combustion temperature in natural gas-fired and the extension of burning time.更多还原